> Don't forget that digital camera marketers count each R, G and B sensor > separately in the megapixel rating. In which case it should probably be > called megadots. While I'm being pedantic, I assume you mean ppi instead > of dpi in your printing resolution ;) > > The file comes out with the right amount of megapixels because of the > software interpolation making guesses about what's going on between the > sensors. This adds to the filesize but doesn't add any actual > information. > > So you need to multiply your numbers by three; ie 21.6Mp and 13.8Mp > respectively.
True enough, but I assume this has all been taken into account in the idea that "the best resolution for printing is 300 ppi." I'm just repeating this standard, not second-guessing it. --Mike
